US2777456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas pressure regulators
Assignee: Individual
•
Filing: 1952-05-14
•
Granted: 1957-01-15
•
Expires: 1972-05-14
Abstract
No abstract record available.
Inventors
- 👤 Ey Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:43
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1804; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US532655A
Cited
US792757A
Cited
US894018A
Cited
US885812A
Cited
US1507073A
Cited
US1512243A
Cited
US1532615A
Cited
US1782760A
Cited
US1783395A
Cited
US2080373A
Cited
US2156823A
Cited
US2362352A
Cited
US2647720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |